CDAI focuses its efforts on the publication of catalogues raisonnés of leading 20th and 21st-century artists and architects, both digitally and in book form.
Open Access: This online resource is freely available to everyone. The primary aim of DOAB is to increase discoverability of Open Access books. The directory is open to all publishers who publish academic, peer reviewed books in Open Access and should contain as many books as possible, provided that these publications are in Open Access and meet academic standards.
Project Gutenberg is a library of over 60,000 free eBooks. Choose among free epub and Kindle eBooks, download them or read them online. You will find the world's great literature here, with focus on older works for which U.S. copyright has expired. Thousands of volunteers digitized and diligently proofread the eBooks, for enjoyment and education. Project Gutenberg eBooks are mostly older literary works. Most were published before 1924, with some published in the decades after.
